Driveline gearboxes

The developer does not include self-directed tutorials with the program, but the company will provide user training directly. The trainers customize course content and duration to meet up the needs of each organization. A one-week training session would be adequate to cover the basic modules and some advanced topics. Many highly specialized software packages require constant use to become and stay proficient. I discover that RomaxDesigner will not require this degree of attention. Engineers with other duties will see this software functional also if not used on a regular basis.

For parallel and perpendicular-axis gears, modules provide interfaces to more detailed analysis software, such as Simpack, LDP, and AnSol. They act as a “front side end” for also more-computationally intensive formulations of bending and contact stress. The mixture of these software programs is particularly powerful, since it permits cumulative damage-life analysis including the nonlinear ramifications of gear-tooth deflection and bearing stiffness, acting on a fully developed tooth profile. Additional modules concentrate on NVH and powerful characteristics, such as equipment rattle and whine, program modal evaluation, and clutch evaluation. Modules are also open to automate optimization and for the sensitivity analysis of system and component designs.

RomaxDesigner models can include spur and helical gears, and with the perpendicular-axis module, bevel and hypoid gears. The bottom software versions gears with enough detail to investigate their effects on all of those other system. Additional modules allow design and rating to AGMA, DIN and ISO standards. For parallel-axis gears, extra modules permit macrogeometry definition and optimization for manufacturability in addition to detailed evaluation of microgeometry for contact stress and transmission error. RomaxDesigner graphics are suitable for a variety of reporting illustrations, such as system topology and component deflection.

Bearing models provide nonlinear stiffness interactions with adjacent components, which may be critical when calculating gear-support stiffness, gear-mesh misalignments and preload requirements. When calculating bearing lifestyle, the models include the effects of misalignments developed through the flexibility of any coupled elements. A bearing preload device automates studies of bearing life as a function of preload. These features have already been proposed for another release.
Advanced bearing-analysis modules provide detailed analyses (ISO 281 Product 4), including contact stress, fluid-film thickness, and stress-based lifestyle calculation. Advanced bearings could be defined with a variety of predefined roller and raceway crowns, or with a measured crown.

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